The 540-541 gearmotors were specifically designed to satisfy all closing requirements in industrial and commercial environments, and are able to automate sectional doors, large ones included. The operation of the oil bath gearbox is guaranteed by a steel worm-screw coupled to a bronze ring-gear, enclosed in a solid die-cast aluminium body. The gearmotor is non-reversing. In the event of a power cut, the door can be moved manually by using the “rapid” release cord device (standard supply for all models) The gearmotor is highly compact, in particular its width of only 92 mm makes it easy to install even where space is tight. The use frequency of the gearmotors (almost intensive) means that they can be used also for particularly heavy duty cycles.
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